3  * The class-specific portions of the driver model
26  * struct class - device classes
27  * @name:	Name of the class.
28  * @class_groups: Default attributes of this class.
29  * @dev_groups:	Default attributes of the devices that belong to the class.
30  * @dev_uevent:	Called when a device is added, removed from this class, or a
34  * @class_release: Called to release this class.
38  * @namespace:	Namespace of the device belongs to this class.
39  * @get_ownership: Allows class to specify uid/gid of the sysfs directories
40  *		for the devices belonging to the class. Usually tied to
42  * @pm:		The default device power management operations of this class.
44  * A class is a higher-level view of a device that abstracts out low-level
46  * at the class level, they are all simply disks. Classes allow user space
50 struct class {  struct
59 	void (*class_release)(const struct class *class);  argument
78 int __must_check class_register(const struct class *class);  argument
79 void class_unregister(const struct class *class);
80 bool class_is_registered(const struct class *class);
90 void class_dev_iter_init(struct class_dev_iter *iter, const struct class *class,
95 int class_for_each_device(const struct class *class, const struct device *start, void *data,
97 struct device *class_find_device(const struct class *class, const struct device *start,
103  * @class: class type
106 static inline struct device *class_find_device_by_name(const struct class *class,  in class_find_device_by_name()  argument
109 	return class_find_device(class, NULL, name, device_match_name);  in class_find_device_by_name()
115  * @class: class type
118 static inline struct device *class_find_device_by_of_node(const struct class *class,  in class_find_device_by_of_node()  argument
121 	return class_find_device(class, NULL, np, device_match_of_node);  in class_find_device_by_of_node()
127  * @class: class type
130 static inline struct device *class_find_device_by_fwnode(const struct class *class,  in class_find_device_by_fwnode()  argument
133 	return class_find_device(class, NULL, fwnode, device_match_fwnode);  in class_find_device_by_fwnode()
139  * @class: class type
142 static inline struct device *class_find_device_by_devt(const struct class *class,  in class_find_device_by_devt()  argument
145 	return class_find_device(class, NULL, &devt, device_match_devt);  in class_find_device_by_devt()
153  * @class: class type
156 static inline struct device *class_find_device_by_acpi_dev(const struct class *class,  in class_find_device_by_acpi_dev()  argument
159 	return class_find_device(class, NULL, adev, device_match_acpi_dev);  in class_find_device_by_acpi_dev()
162 static inline struct device *class_find_device_by_acpi_dev(const struct class *class,  in class_find_device_by_acpi_dev()  argument
171 	ssize_t (*show)(const struct class *class, const struct class_attribute *attr,
173 	ssize_t (*store)(const struct class *class, const struct class_attribute *attr,
184 int __must_check class_create_file_ns(const struct class *class, const struct class_attribute *attr,
186 void class_remove_file_ns(const struct class *class, const struct class_attribute *attr,
189 static inline int __must_check class_create_file(const struct class *class,  in class_create_file()  argument
192 	return class_create_file_ns(class, attr, NULL);  in class_create_file()
195 static inline void class_remove_file(const struct class *class,  in class_remove_file()  argument
198 	return class_remove_file_ns(class, attr, NULL);  in class_remove_file()
201 /* Simple class attribute that is just a static string */
214 ssize_t show_class_attr_string(const struct class *class, const struct class_attribute *attr,
219 	const struct class	*class;  member
228 struct class * __must_check class_create(const char *name);
229 void class_destroy(const struct class *cls);